Patents by Inventor Jolene Zhou

Jolene Zhou has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and apparatus for controlling electric motors
    Patent number: 11843313
    Abstract: There is described a method of controlling an inverter supplying power to a permanent magnet AC, PMAC, motor having a plurality of phase windings, The method comprises: selecting a first phase winding of the PMAC motor; electrically connecting the first phase winding to a first DC terminal of a DC link circuit at a first time, and maintaining the connection between the first phase winding and the first DC terminal: determining a flux difference between the first phase winding and a second phase winding of the PMAC motor; selecting a second time to electrically connect the second phase winding to the first DC terminal; electrically connecting the second phase winding to the first DC terminal at the second time; and maintaining the connection between the second phase winding and the first DC terminal. The second time is selected based on the determined flux difference.
    Type: Grant
    Filed: October 8, 2020
    Date of Patent: December 12, 2023
    Assignee: BorgWarner Gateshead Limited
    Inventors: Ken Thompson, Jolene Zhou, Jack Dunn
  • METHOD AND APPARATUS FOR CONTROLLING ELECTRIC MOTORS
    Publication number: 20230031142
    Abstract: There is described a method of controlling an inverter supplying power to a permanent magnet AC, PMAC, motor having a plurality of phase windings, The method comprises: selecting a first phase winding of the PMAC motor; electrically connecting the first phase winding to a first DC terminal of a DC link circuit at a first time, and maintaining the connection between the first phase winding and the first DC terminal: determining a flux difference between the first phase winding and a second phase winding of the PMAC motor; selecting a second time to electrically connect the second phase winding to the first DC terminal; electrically connecting the second phase winding to the first DC terminal at the second time; and maintaining the connection between the second phase winding and the first DC terminal. The second time is selected based on the determined flux difference.
    Type: Application
    Filed: October 8, 2020
    Publication date: February 2, 2023
    Applicant: BorgWarner Gateshead Limited
    Inventors: Ken Thompson, Jolene Zhou, Jack Dunn